[NatureNS] Suggestions for using E-Bird - quite long

Date: Tue, 17 Jan 2012 16:40:09 -0400
From: iamclar@dal.ca
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All:

I've just finished my draft write-up of Sparrows-through-House Sparrow  
for the quarterly "NS Birds." This is no easy task, and is now made  
the more onerous by trying to summarize the huge volume of material on  
E-Bird. Yet that source is and will be of great value as the years go  
by as a permanent resource, like the Audubon and BSC Christmas Bird  
Counts (CBC) and the CWS-USFWS Breeding Bird Surveys (BBS), for  
monitoring our bird populations.

It is much less useful, or more difficult to use, than CBC or BBS as  
an indicator of long-term population trends. However, in preparing my  
account I produced tentative analyses of seasonal migration patterns  
of our common "bush" sparrows based on Ken McKenna's periodic counts  
on Big Merigomish I., and of Am. Goldfinches counted on that Island  
and by Debbie Stoddart-Pageau at feeders in Timberlea.

So, it occurs to me that, while there is little short-term value in  
entering casual lists from here and there on E-Bird (and really very  
little use at all in entering common species without numbers),  
season-long counts of regular birds from  frequently birded "favourite  
patches" (as birders refer to them) throught the province could give  
us a more dynamic pictures of how birds arrive, move through, and  
leave. Furthermore, regular backyard (feeder) counts of our regular  
species (e.g. "winter finches") through the season could give us a  
clearer picture of changes within and between years of these wanderers.

Of course, every datum counts, and one shouldn't discourage entering  
of any birds you wish. But, other space (and editorial) savings might  
come if regular birds at given localities were monitored on some  
a-priori schedule - for example the highest feeder counts on Monday  
and Friday (or on the weekend) would allow for much combination of  
counts to produce regional patterns and trends.

I hope this plea has been useful.

Cheers, Ian

Ian McLaren

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